Skiving machine



Oct. 9, 1923.

. F. RICKS ET AL SKIVING MACHINE Filed June 23 2 Sheets-Sheet 1 Fig. 3.

Oct. 9, 1923.

F. RICKS ET AL SKIVING MACHINE Filed June 23, 1921 2 Sheets-sheaf. 2

"/NVENTLFS; I

*Pa iesieeei, e, 1923.i z

3312i; QICKSQJNV'DLAILFFBED EDWARifiRICHA-itl) W e V fTQ:UNITEDISHQEIMACEIINERY CO P ATION; YOFKPA'IEBYSIOLTS, new JER EY; A C 51;

' To may tronemm: 1 1

' the fellewing description, i connectioii'with, the accompanying drawings, 1s a, 'specifica Be it kneWn :"th'at We; FRED 'Rio'Ksi a nd l 1 Aime- 1311It cnmnsfiubjeets:bfltheKiiig bf IfQSldljng at 'Leicester, Leicester} shire, England," hayegl-nve'nted certain "Im-i ."proyemeiits in Skiv ing 'Meehines, of whieh' tien. like'fi'eference characters on the draw- 1ingsj indieeting'likel parts in the several chine 'idtvhich' the inventibn' is 'embodied is ,ingk ife 'at' times digs 'i'i tq' the material and the skived' portion .0f "the material is "hel of that-type havingfe; cylindrical knife of Wh'ih the machine showii ,iend dsribedQin the specification of UnitedStetes Patent N0. l,117,54:1"is an example. i

Iiymachines of this type it has been fqun'd L thatiwith certain classes eff work the mete-V i ial is not .efl'e etively controlled bytheffre'ed i011 and pressei' as itr'is fed-to the Cylindrical sl'civing knife with the result thet the skiv T One featiirefo'f this invention relates pi'bvisi'onjof certain means wherebyfthe ma' f theskivihgknifemnd digging in 'of the knife andc0hs e queht hellbw 'skivingi minimized; "I and; fWith this iii yiew; the illustrative em bo diineiitof the 'ii vefitibn includes afc ori sti uctionrend erfengeineht ofpi esser 1 '7 feed. r011 such that the greatest pressi'lre' lee-1 "tween these parts upol thefwerk' oceursat a distance from thejedge of themdrgiri being opeiated'upon.

: m r win befieet v f ppe Q 'In the present machine the fpi'essey V 1ikthap of the patent, is e gular'lyed ust-f "able to. Vary thBi'j'iIICHDatiOiIf'Qf the sear-f 01f beve piOdued' upon the "edgepf the wbrk.

It isdesirable int many in tance "the Presser is adjusted angulerly to 'va fy the';

' SKi m adj u'stmentjief :fthe p'r'essei tower jjaceiit the knife}; r

These en'd' theffee-turfes of the invention, men in certain detiails ot' construction and V ebmbinations fef "paI'tS f W-iH be described as o f'lthe invention is; the provision .0 f I neens ,ji'n cenj mctionfwith a 3 'eofnstruction and; e 'pangeme'nt es just re-1 fei'red to ,whereby; when "a r; 'ina ccurate1y ki e i p ff i terieli Pu h h t 1 me chine; 2 s co d; time'the thin "edge tof the];

always 'be ttiuniij mm distance firo rn't-he edgie- SQOF immerse; E NeL Aiqiif-AssiG o tsI 2- V w d e-r from; the 'khiffe shouldbefiieeesseryf,Iifothei Twordsithatgpprtieliofithei press'n-Whiehis 7 ildjacent th edge et aiiy time "should roffthe lmife-irrespectivefef the engulerpm sition occupied'by the pfesserlfgln' the illus-i t're tive' machine -the 'p'resser' iseonbjavefbr the greete fpart of its ejxtentfthe eeneave';

5 port on 'mergin'ginto a c o'nyex pfortitm at thatenel of-the presseif-iwhih is adjaeentgteljj.

j istahleiabciilt the" eeriteit of longitudinal theedge age; andfthe presser"isfmadead? p'oi tion bf the convex?pertien yhieh is adembOdiedf 'iIfTa-n{illustrative fm-achine and vpointed out in the: appended claims.

" In the accompenyiiig' drawings 1 v IisPaII-end elevation, partly in see i I iioiisfjqfthe machine 1 "Fig? 21s a; SideleV'atiOn showingpai 1 3is 'a p1a iivieW of'the' feed r011 r l parts cooperitingtherewith; arid-I; 'f-E'Figs'. 4ind 5"illi stlatefliagra etieally the goperetive f-i'e'lfagtiohshipl "of the feed" r011. andthefpl esser and theiri action upon the: Y

aBeforerpmeged ng to; statu s cleserip gti' l ii ofl the inventive af brief general deseripti on 10f the machine Will be given, Fast tee" 'i qtatable sheftflG mbu ited in suitable bear ings iii theffame' '8 of the machine isa' cy1in-' isa presseniherein'shown as ajroll 14, (The 'dt'icziLknifeIO. *Ldc'atefdqpartlyinsidethe "knife is a feed r0l1"12, end aboize the knife,

the pl esentmachine-i'ser may be &-substanti'ally the sa nl ejjasf that 'bf the pelteiited' maderstqbid' fthet the. kiiifef and feed 'i'olhare re VI I presserffell is carried, iii 'zi,"mafr1ner;pi"esent1y 'te-bel escribe'dk t the lew'yerend ef'e; v'erti ea-11y adjustable bar 16 Whichjitself is" mbuntedf in; an overhanging ergnf 18.] An e e 2 i'i a y h ld n; place by :a thifinb screw :22, serves te guide the 3W0 rkgf The nieuzitirig ei the knife and feedroll of tated continuously and that the materiel to he skived is ied away fronithe'ohsei Ar with;

-its edge in contact with-the gageQQ, the

" f scar-i, and Zthe'l ed rollyieluin" -y 'ac-coinnio} ion oi the resser being rigidly held except tel-hon, so as to determine he in Q datin itself to 7' the lis ed W resser.

' Work thus insecurely held I ed to d g into thework to pro cave Presser V e cave feed. roll,;the presser and feed riollhave In thepresent' machine the anglefcfthe' scarf is determined byadjusting thei resser "1% angularly, said presser .stantially throughout its foperaaive When, as has hitherto been-the case, a con-f has been employed-with icong i d 11 work 100 with maximum force 7 only at a single point at the extreme ecge of the vk erlr. The result of this hasfheenthat he Work has not been held securelyenough in *thatit has not been crowdedor hent into, theconcavity of the resser; andwith the thelrn-ife has tendducea scarf which .is considerably curved instead of hei'ng, as it should he approxirnately straight.

In order to remedy this defect,

7 roll of the illustrative machine is cut away (to the left in the figure) the locality beyond the edge of the Work and'adwhich engages jacent the edge gal-51620: and, fordistance away from the edge gage u herethe feed rollis oppo'sed'bythe Pressergisre.

duced in diameter and made-cone-shaped as at 24 (see Fig i),:thesnialler diameter of the cone being nearer the edge gage. a feed roll of this shape it has heenfound that the Work is effectively held against the f Referring more particularly to Will be seen that the maximum ticu-la rlye'fiective when comparatively heavywork. such scounter presser, and the kni'fe is prevented from digg-ing into the work,

is not at the extreme edge hut'at a point opposite the concavity of the resser.

stitfeners. is being op It'should he understood that crated upon. the diagrammatic SllOW1Il$I-1nF-1Qj. 4% h as heen exaig 'erated so as toemphasize the action of 0' In the operation of 6 1 the feed rclllandl nresser in thisp'articular, the machinethe; feed roll 12 :engagesmore or less all of thataportion of the Work between it 'and the nresser '14,

butthe maximum pressure is localized. along the line-26 at a d stance -from the edgejof the Work instead cfsuhstanti'ally theedge o'fsthe Work-as has hitherto heenth'e'caseu irorn ro- V V V 1 aim-V8 descrihed the thin edge/of the niate being concave suh lax/Q;

5 the feed a short I he us With Apparently this is due 7 to the fact 'thatthe maximum pressure upon the WOIl 7 into a convex portion if 2 piece; of material has been inaccurately slrived it .niay he} desirablelto, pass it through the machine a secondvtime- Should this he done With a feed roll Zof theshape rixilf would he unsupported as this portion of the inater-ial passes ever the-coiled p013 cuity yi'e inn; fingers 28 are arranged'at the ccned poi lcn'of the roll-in" deepoperipheral efrooi es between toothed disks 30 of which the rell'12 is, built up, These yielding fingers arranged to make up the'normal tut a} curve of the roll. Each finger w astened hysa clampscrew 32 and posi' tioning pins to a'lever36 which is mount: e edon horizontalvpivot 3'8 carriedpin a tiongoi the feed roll. To overcome this diflir 4-0 fixed to the feed-roll'-su pporting yolzesha ped head 42. .The lever has a tail r pieceAAvWhieh is held. when no work is in tneinechine h a shrine 4L6 situated in a 7 l o l .7

recess in the bracket lO and bearing against the underside of the lever 86 againstanec V cenljrie nortiouof a stu'd 4:8 rotatahly mount- 'ed in thehracke't l0; By rotation of thestud .thejnosition of the fingers 28 relative to the neripher'y otthe-feed roll 12 may be adius and the stud e8 may be lock'ed'in ad 31 en position "by means ofa set screw. threaded into the bracket 40. The springs l I up the fingers 28., but,

e I lding 3; hold 7 w iena piece of material being skived for t tiine thefingers easily are depressed material. On the other hand,- they-ere upheld "yieldinglyh With sufiicient force difficulties which wouldarise from .a total lack :of support git this part when skiving already fonce-skived piece. In Fi g ffi shown a PI'GVlOllSlY ski-ved: pieee' .of Work which. is being passed lthrough the machine a second time, the thin, skived edge being sumiortedhythe yielding fingers-Q8g r The ,presserr14L is'jn this; case a d i e age-inst already skived piece to avoid the v ios rollthe periphery of' which isconcave as no at 50 for the-greater portion of its' length endnt that end of the roll nearest the hfori-r zontal vaxis about which the roll is angularly adjusted-the concave rportion merges 54:. The radius ofthe longitudinal convexity is greater vthan: the

radius of the roll at this point; Thecenter 52 of'the lower longitudinal con vexrcur-ve,

as seen in Fig; l. is sligi'htlyi othe'leftpflthe V vertical: axial snneof the s'kivingfknife. VWhen viewing thermachine asin Fig; '41, with the roll aids substantially horizontalanid'the roll at the height above the-(knife axis indicated in. thatfigure, the point at which the convex lower curve merges i-into the concave eurve and the I point at I which the convex lowernurve :meets the knife :edge' are coincident; and lie in the said verticalaxial ,plane;

Augu l a r adjustment of the roll to increase the angle of. the scarfwill naturally rmove t me the' ferrner the 1 b I lattefri f i ql yf uniforn distajncefronrthe;edgeot the k'nite'. Th s' distance; will; determine-the thicknessof the extreme ed 1 sta ntiallvze'ro; and the margin of the work Y which theroll'rotates, whiohstudisfclamped by; a 'nut 58 -0n' the end of the-stud in one ar br cket 0 Th ot er-e mbf the .bra'clretatthe oppositel'end ofv the roll, I straddles, the convex portion-"oi the roll and forms iahalf bearing oit seat forjthis p'or f I em t ta e h upward t ru t-e e re- 1 l The bracketQSO has ;forIned on ita 1jrear vardl y extending horizontal binf62 having l a bearingkin. the; presser bloch- 16; the: axis o t etii b nei ing W th-t Xi L52-1 A vthumb fscretv :64 thr e'aded thmughe lugj "formedfon the, pre'ss'er; block 1 6 bears, on the upper "person of thegbracket; 60," andI'a spring. v65,;v attached at one end to a pin in"v the bracket and at the othereridtoa pin in the 'pressei: block ,Lholds the bracket up to the screw. By' rotation of the screw the bracket and roll may be adjusted about the axis '52 of the rearwardly extending I pin 62to vary the angle of the'scarf. *The econvex end of the presserrollvhasuformed axially in it a squ'are'recess to receive the square end of a driving rod 66, theo'ther' V 4. square end of which enters a square recessi 1 formed in a boss 68 one spur-gear 70 havfling a horizontally-extending shaft which is rotatably' mounted in abearing in the machine 'frame. oThejsquare ends of -the rod and'the square: recesses are 'so lformed; as to provide universal driving connections.

' Th'e spur-gear'FO meshes Witha secondspur= gear 72 whichfha a horizontally extending shaft rotatabl v-rnounted'in a bearingiorn ed in the machine frame below and parallel V to the spur-gear shaft. The second shaft has onit a spiral gear 74 which is driven by a I 1 second spiral gear '76-mounted on the shaft,"

which drives the feed roll of the machine.

" 66, h 'This shaft isfsituated belowand at right angles to the'twd spur gear shafts.

jHaving thus described our invention,- wvhat We claimas new and desire to secure by Letters Patent of the United States is '1. A machine of the class described, having inicombination, a rotary. skiving knife and means for feeding'a piece of sheet material to the knife in such manner as to ,produce' a beveled margin thereon, said 'teriali 1 2.

ge'iqf h i afterift ha Iingfin combination, a cylinjdricalfknife, d i

been skive di illustrative niachine in V 1 the" acgustment shown, this; d stance is sub .ing one ofthe rollers toieedthesivork.

portion of the feed roll. y

from one end of. the

inea sgcom rijsing tw jrnembers adaptedito engagefthe fIn-argin ofi thennateriallbn ion 1 machine r the class attested, e

atifits'r argin,andteed'ittofthe knif 'said being shapedjto bend fithein arg iniif 5f 1 intofa curveand to"exertn their niaxirnuin;-

I f v rip ing actio'n fat a loc'ality spaced fi ment- The rolllt is'boredtdreceivea st-u'd 56 on memb rs edge of the work.

" 3. 'A 'inacllinfe or the kites, die ci itefishia vii:

the; edge .of the Work,-

;means for "d-rivr m chi e c s i e c b d he ns; in in on, y indr cal j-knife,

presserjlocated outside theicii'cle: Gen e knife v a I d en ce p r ns f e ro l. si

dinallv convex: located inside said circle," I said ,feed rollbeing forined vvitha ridge whi h extends near r: to the, adhere rate v Y of the pres jser" than does anyiiotherf portio oft-he roll," h 1 7 5; A machine of the'class ing in combination, a cylindrical"Ljknife;,a v presser located'outside the, circle of theiknife edge and having an operative jfaceWhich' is concave,'and a cooperating feed roll long tudinally convex. located inside saidgcirclej said i'eed roll beingiformed 'with-a"ridge] which extends nearer; to the adj acentface of the 'preseseri'thm does any o h r. P r i f", i; the roll. i

6;'A,1nachine of they class described h'av ing, in combination, a cylindrical rkn if e ia r presser roll located outsidethejcircle of-jtheknife edge and having an operative jface which is concave, and a cooperatingofeed-rollo -l I longitudinally convex located inside "said;

circle; said feed roll heingfforrnediwith -a ridge iwhich extends nearer to thea djacent I doe' ny ether- 3 face of t-he m'esser rollthan 7. A machine of the class described, hav} face" Operatingd. 1 g tudinally? convexlocated insidesaid circle the'i vfl l d I for rotatingthe rolls."

.ribsvlti: I .1.51

5,120: in'g in combination, a jcylind'ric'al lmi 'f iaj; Presser roll located outside the'crcle oiiithef, g f knife edgeand having aconcave operatlve'f roll having a shoulder locatedto'press-the, 1).v I WOIlLlIltO the concavity "of the'presserlroll 5 o with maximum; force atja'locality' spaced .1

concavity and means? i s 1 if presser located cutsidethe circle of the knife and having; a, concaveface presented to the edge of the knife, a co-operating feed r 011 located'inside said circle and'having a longitudinally convex portion merging into a ingin combination, a cylindrical knife, a

conical portion, and means for driving'the feed r011; o I I 9. 'Ainachine ofthe class described havpresser roll located outside the circle of the knife and having a concave face presented to the edge of the knife, a co-operating feed roll'located inside said circle and having a longitudinally convex portion merging into a conical portion, and means for driving both of said rolls;

" 10.- A machine offthe class described, having in combination,a cylindrical knife, an edgegage, a presser, a feed rollhaving a groove in its periphery at that portion adj acent the edge gage, and a yielding member extending into the groove in position to support-the previously skived edge of a piece of material. v y

11. A machine of the ing in combination, a edge gage, a presser, a feed roll having grooves in its periphery at that portion adjacent the edge gage, and a series of yield ing members extending into the grooves in position to support the previously skived edge of a 'piece of material.

class described, havcylindrical knife, an

12. A machine ofthe class described, having in combination, a cylindrical knife, a

presser having a' concaved body portion which merges 'into aconvex portion, and

means whereby the p-resser maybe angularly adjusted about substantially the center of curvature of the convex portion;

13. Amachine of the class described, hav

ing in combination, a" cylindrical knife, a i presser roll the long tudinalcontour of. v 45 i which is partly concaveand partly convex,-

and means whereby the roll maybe angu-n vex portion and the knife remains unof the roll. v

14. A machine of the'class described, hav

inp; in combination, a cylindrical knife, a pres'ser roll the longitudinal contour of ,whichis partly concave and {partly convex,

means whereby the roll may be angularly adjusted about the center of the curve of the convex'portion which is adjacent the knife, whereby the distance between the convex portion and the knife remains unchanged in the various'angular adjustments of the roll, 1

and means for driving the presser roll.

In testimony whereof We have signed our names to this specification.

FRED nrcKs. 

